Alert archive / Maryland / Tornado Warnings in 2011

Tornado Warning 6, NWS Philadelphia/Mount Holly

May 19, 2011Kent County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this tornado warning at May 19, 2011, 12:43 PM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 19, 2011, 12:43 PM EDT (16:43 UTC)
Expired
May 19, 2011, 1:15 PM EDT
In force
32 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Kent County, MD, Queen Anne's County, MD

The radar

The Dover AFB radar (KDOX), 64 km from the middle of the area, began a volume at 16:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 4.7 hours before the alert went out and 29 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2011-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2011-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
143 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
819 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

063 
WFUS51 KPHI 191643
TORPHI
MDC029-035-191715-
/O.NEW.KPHI.TO.W.0006.110519T1643Z-110519T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1243 PM EDT THU MAY 19 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL KENT COUNTY IN NORTHEAST MARYLAND...
  NORTH CENTRAL QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...

* UNTIL 115 PM EDT

* AT 1239 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MORGNEC...
  OR 10 MILES NORTH OF CENTERVILLE...MOVING NORTHEAST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CRUMPTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERAL REPORTS OF A FUNNEL CLOUD FROM EMERGENCY MANAGERS AND PUBLIC.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 3931 7597 3920 7584 3916 7599 3920 7605
TIME...MOT...LOC 1643Z 223DEG 5KT 3919 7600

$$
2 follow-up statements
606 
WWUS51 KPHI 191659
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1259 PM EDT THU MAY 19 2011

MDC029-035-191715-
/O.CON.KPHI.TO.W.0006.000000T0000Z-110519T1715Z/
KENT MD-QUEEN ANNE'S MD-
1259 PM EDT THU MAY 19 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR NORTH
CENTRAL QUEEN ANNE'S AND CENTRAL KENT COUNTIES...

AT 1251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR MORGNEC...OR 12
MILES NORTH OF CENTERVILLE...MOVING NORTHEAST AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CRUMPTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERAL EMERGENCY MANAGERS AND SPOTTERS REPORTED A FUNNEL CLOUD 
EARLIER WITH THIS STORM.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED 
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 3919 7598 3921 7603 3926 7601 3931 7597
      3925 7590
TIME...MOT...LOC 1657Z 207DEG 6KT 3922 7599

$$
043 
WWUS51 KPHI 191709
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
109 PM EDT THU MAY 19 2011

MDC029-035-191717-
/O.EXP.KPHI.TO.W.0006.000000T0000Z-110519T1715Z/
KENT MD-QUEEN ANNE'S MD-
109 PM EDT THU MAY 19 2011

...THE TORNADO WARNING FOR NORTH CENTRAL QUEEN ANNE'S AND CENTRAL
KENT COUNTIES WILL EXPIRE AT 115 PM EDT...

THE ROTATION HAS WEAKENED WITH THIS STORM AND NO FURTHER REPORTS OF 
FUNNEL CLOUDS HAVE BEEN REPORTED. ALTHOUGH THE IMMEDIATE THREAT HAS 
DIMINISHED...SHOWERS AND THUNDERSTORMS WILL CONTINUE THOUGH THE 
AFTERNOON.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 3919 7598 3921 7603 3926 7601 3931 7597
      3925 7590
TIME...MOT...LOC 1707Z 207DEG 6KT 3923 7598

$$

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 18, 9:10 PM EDTCoastal Flood AdvisoryPHICaroline, Cecil, Kent, Queen Anne's, Talbot11 hr
May 18, 11:46 PM EDTSpecial Weather StatementPHICaroline59 min
May 19, 12:11 PM EDTSpecial Weather StatementPHICaroline94 min
May 19, 12:54 PM EDTSpecial Weather StatementPHICecil66 min
May 19, 1:00 PM EDTSpecial Weather StatementPHICaroline60 min
May 19, 1:37 PM EDTAreal Flood AdvisoryPHICaroline, Cecil, Kent, Queen Anne's6 hr
May 19, 2:19 PM EDTSpecial Weather StatementPHICecil56 min
May 19, 3:39 PM EDTSpecial Weather StatementPHICaroline, Kent, Queen Anne's, Talbot51 min
May 19, 4:47 PM EDTSpecial Weather StatementPHICecil, Kent, Queen Anne's88 min
May 19, 5:13 PM EDTSevere Thunderstorm WarningPHICecil, Kent62 min

Nearby

Tornado Warnings in Maryland, 2011Every tornado warning in 2011Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.